Veterinary oPHTHAXMOL-aGY. 51 



diagnosing between conjunctivitis and inflammations 

 •of a deeper nature. 



Conjunctivitis Catarrhalis. — Pxirxdent (which may 

 be idiopathic or gonorrheal, JDiphtheretic^ Granular^ 

 Phlyctenular^ these are some of the forms of inflam- 

 mation of the conjunctiva, one of which may run into 

 another. The discharge from one kind may reproduce 

 itselt or one of another form. They are contagious 

 and infectious. May occur epidemically. Pink-eye is 

 but an epidemic catarrhal conjunctivitis. A differentia/ 

 diagnosis is often impossible early. 



Catarrhal Conjunctivitis. — Catarrhal ophthalmia is 

 the mildest form. Caused by injuries, exposure, bad 

 hygiene, exanthematous diseases, etc. Again, it may be 

 secondary to other inflammations. Among the symp- 

 toms we find smarting preceded by itching, lachryma- 

 tion, sensation of sand or of some other foreign body 

 in the eye. Have increased vascularity, causing partial 

 or uniform redness of the ocular conjunctiva and impart- 

 ing to the palpebral conjunctiva a velvety, roughened ap- 

 pearance. CEdematous swelling of the conjunctiva and 

 subjacent tissue, which may go on to chemosis, causing- 

 the cornea to look sunken. Redness, swelling and stiff- 

 ness of the lids. Mucus or muco-purulent discharge, 

 with tendency toward agglutination of the lids, espe- 

 cially succeeding sleep. Both eyes usually participate, 

 although one eye may go free. This form is amenable 

 to treatment and not very apt to invade the cornea. 



